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authorLinus Torvalds <torvalds@linux-foundation.org>2010-10-23 11:47:02 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-10-23 11:47:02 -0700
commit5f05647dd81c11a6a165ccc8f0c1370b16f3bcb0 (patch)
tree7851ef1c93aa1aba7ef327ca4b75fd35e6d10f29 /drivers/net/myri10ge/myri10ge.c
parent02f36038c568111ad4fc433f6fa760ff5e38fab4 (diff)
parentec37a48d1d16c30b655ac5280209edf52a6775d4 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1699 commits) bnx2/bnx2x: Unsupported Ethtool operations should return -EINVAL. vlan: Calling vlan_hwaccel_do_receive() is always valid. tproxy: use the interface primary IP address as a default value for --on-ip tproxy: added IPv6 support to the socket match cxgb3: function namespace cleanup tproxy: added IPv6 support to the TPROXY target tproxy: added IPv6 socket lookup function to nf_tproxy_core be2net: Changes to use only priority codes allowed by f/w tproxy: allow non-local binds of IPv6 sockets if IP_TRANSPARENT is enabled tproxy: added tproxy sockopt interface in the IPV6 layer tproxy: added udp6_lib_lookup function tproxy: added const specifiers to udp lookup functions tproxy: split off ipv6 defragmentation to a separate module l2tp: small cleanup nf_nat: restrict ICMP translation for embedded header can: mcp251x: fix generation of error frames can: mcp251x: fix endless loop in interrupt handler if CANINTF_MERRF is set can-raw: add msg_flags to distinguish local traffic 9p: client code cleanup rds: make local functions/variables static ... Fix up conflicts in net/core/dev.c, drivers/net/pcmcia/smc91c92_cs.c and drivers/net/wireless/ath/ath9k/debug.c as per David
Diffstat (limited to 'drivers/net/myri10ge/myri10ge.c')
-rw-r--r--drivers/net/myri10ge/myri10ge.c49
1 files changed, 38 insertions, 11 deletions
diff --git a/drivers/net/myri10ge/myri10ge.c b/drivers/net/myri10ge/myri10ge.c
index fb2c0927d3cc..8524cc40ec57 100644
--- a/drivers/net/myri10ge/myri10ge.c
+++ b/drivers/net/myri10ge/myri10ge.c
@@ -225,6 +225,7 @@ struct myri10ge_priv {
struct msix_entry *msix_vectors;
#ifdef CONFIG_MYRI10GE_DCA
int dca_enabled;
+ int relaxed_order;
#endif
u32 link_state;
unsigned int rdma_tags_available;
@@ -990,7 +991,7 @@ static int myri10ge_reset(struct myri10ge_priv *mgp)
* RX queues, so if we get an error, first retry using a
* single TX queue before giving up */
if (status != 0 && mgp->dev->real_num_tx_queues > 1) {
- mgp->dev->real_num_tx_queues = 1;
+ netif_set_real_num_tx_queues(mgp->dev, 1);
cmd.data0 = mgp->num_slices;
cmd.data1 = MXGEFW_SLICE_INTR_MODE_ONE_PER_SLICE;
status = myri10ge_send_cmd(mgp,
@@ -1074,10 +1075,28 @@ static int myri10ge_reset(struct myri10ge_priv *mgp)
}
#ifdef CONFIG_MYRI10GE_DCA
+static int myri10ge_toggle_relaxed(struct pci_dev *pdev, int on)
+{
+ int ret, cap, err;
+ u16 ctl;
+
+ cap = pci_find_capability(pdev, PCI_CAP_ID_EXP);
+ if (!cap)
+ return 0;
+
+ err = pci_read_config_word(pdev, cap + PCI_EXP_DEVCTL, &ctl);
+ ret = (ctl & PCI_EXP_DEVCTL_RELAX_EN) >> 4;
+ if (ret != on) {
+ ctl &= ~PCI_EXP_DEVCTL_RELAX_EN;
+ ctl |= (on << 4);
+ pci_write_config_word(pdev, cap + PCI_EXP_DEVCTL, ctl);
+ }
+ return ret;
+}
+
static void
myri10ge_write_dca(struct myri10ge_slice_state *ss, int cpu, int tag)
{
- ss->cpu = cpu;
ss->cached_dca_tag = tag;
put_be32(htonl(tag), ss->dca_tag);
}
@@ -1088,9 +1107,10 @@ static inline void myri10ge_update_dca(struct myri10ge_slice_state *ss)
int tag;
if (cpu != ss->cpu) {
- tag = dca_get_tag(cpu);
+ tag = dca3_get_tag(&ss->mgp->pdev->dev, cpu);
if (ss->cached_dca_tag != tag)
myri10ge_write_dca(ss, cpu, tag);
+ ss->cpu = cpu;
}
put_cpu();
}
@@ -1113,9 +1133,13 @@ static void myri10ge_setup_dca(struct myri10ge_priv *mgp)
"dca_add_requester() failed, err=%d\n", err);
return;
}
+ mgp->relaxed_order = myri10ge_toggle_relaxed(pdev, 0);
mgp->dca_enabled = 1;
- for (i = 0; i < mgp->num_slices; i++)
- myri10ge_write_dca(&mgp->ss[i], -1, 0);
+ for (i = 0; i < mgp->num_slices; i++) {
+ mgp->ss[i].cpu = -1;
+ mgp->ss[i].cached_dca_tag = -1;
+ myri10ge_update_dca(&mgp->ss[i]);
+ }
}
static void myri10ge_teardown_dca(struct myri10ge_priv *mgp)
@@ -1126,6 +1150,8 @@ static void myri10ge_teardown_dca(struct myri10ge_priv *mgp)
if (!mgp->dca_enabled)
return;
mgp->dca_enabled = 0;
+ if (mgp->relaxed_order)
+ myri10ge_toggle_relaxed(pdev, 1);
err = dca_remove_requester(&pdev->dev);
}
@@ -1555,12 +1581,12 @@ static irqreturn_t myri10ge_intr(int irq, void *arg)
* valid since MSI-X irqs are not shared */
if ((mgp->dev->real_num_tx_queues == 1) && (ss != mgp->ss)) {
napi_schedule(&ss->napi);
- return (IRQ_HANDLED);
+ return IRQ_HANDLED;
}
/* make sure it is our IRQ, and that the DMA has finished */
if (unlikely(!stats->valid))
- return (IRQ_NONE);
+ return IRQ_NONE;
/* low bit indicates receives are present, so schedule
* napi poll handler */
@@ -1599,7 +1625,7 @@ static irqreturn_t myri10ge_intr(int irq, void *arg)
myri10ge_check_statblock(mgp);
put_be32(htonl(3), ss->irq_claim + 1);
- return (IRQ_HANDLED);
+ return IRQ_HANDLED;
}
static int
@@ -3753,8 +3779,8 @@ static void myri10ge_probe_slices(struct myri10ge_priv *mgp)
* slices. We give up on MSI-X if we can only get a single
* vector. */
- mgp->msix_vectors = kzalloc(mgp->num_slices *
- sizeof(*mgp->msix_vectors), GFP_KERNEL);
+ mgp->msix_vectors = kcalloc(mgp->num_slices, sizeof(*mgp->msix_vectors),
+ GFP_KERNEL);
if (mgp->msix_vectors == NULL)
goto disable_msix;
for (i = 0; i < mgp->num_slices; i++) {
@@ -3923,7 +3949,8 @@ static int myri10ge_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
dev_err(&pdev->dev, "failed to alloc slice state\n");
goto abort_with_firmware;
}
- netdev->real_num_tx_queues = mgp->num_slices;
+ netif_set_real_num_tx_queues(netdev, mgp->num_slices);
+ netif_set_real_num_rx_queues(netdev, mgp->num_slices);
status = myri10ge_reset(mgp);
if (status != 0) {
dev_err(&pdev->dev, "failed reset\n");